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Oxygen diffusion in nanocrystalline CeO2

  • L. Saraf
  • , V. Shutthanandan
  • , Chongmin Wang
  • , Yanwen Zhang
  • , O. Marina
  • , S. Thevuthasan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this study, 18O diffusion and related transport on 1-2 μm thick nanocrystalline ceria films prepared by sol-gel process with an average grain-size in the range of 3-38 nm are studied. Initial 18O diffusion results indicate increased diffusion in 6 nm average grain-size nano-ceria films compared to ∼38 nm average grain-size poly-ceria films. Conductivity values in the case of ∼ 3nm average grain size CeO2 films grown at 573 K observed to be marginally increased compared to ∼ 6 nm average grain size ceria films grown at 723 K. A detailed nano-grain analysis by high-resolution transmission electron microscopy (HRTEM) was carried out to understand the effect of nanocrystallinity on the blocking phenomena.

Original languageEnglish
Title of host publication2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - Proceedings
PublisherIEEE Computer Society
Pages477-479
Number of pages3
ISBN (Electronic)0780379764
DOIs
StatePublished - 2003
Externally publishedYes
Event2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - San Francisco, United States
Duration: Aug 12 2003Aug 14 2003

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
Volume2
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Conference

Conference2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003
Country/TerritoryUnited States
CitySan Francisco
Period08/12/0308/14/03

Keywords

  • Alpha particles
  • Annealing
  • Cerium
  • Coatings
  • Conductive films
  • Grain size
  • Nuclear power generation
  • Oxygen
  • Temperature measurement
  • Transmission electron microscopy

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